\begin{tabular}{l*{12}{D{.}{.}{-1}}}
                &\multicolumn{3}{c}{Ageism Explicit}                     &\multicolumn{3}{c}{Ageism Thermometer}                  &\multicolumn{3}{c}{Ageism Index}                        &\multicolumn{3}{c}{Ageism IAT Score}                    \\\cmidrule(lr){2-4}\cmidrule(lr){5-7}\cmidrule(lr){8-10}\cmidrule(lr){11-13}
                &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         &\multicolumn{1}{c}{(7)}         &\multicolumn{1}{c}{(8)}         &\multicolumn{1}{c}{(9)}         &\multicolumn{1}{c}{(10)}         &\multicolumn{1}{c}{(11)}         &\multicolumn{1}{c}{(12)}         \\
\midrule
Generational Grievances Index&    0.270\sym{***}&                  &    0.240\sym{***}&    0.220\sym{***}&                  &    0.200\sym{***}&    0.203\sym{***}&                  &    0.125\sym{***}&   -0.016         &                  &   -0.004         \\
                &  (0.018)         &                  &  (0.018)         &  (0.019)         &                  &  (0.019)         &  (0.019)         &                  &  (0.018)         &  (0.014)         &                  &  (0.014)         \\
\addlinespace
Personal Grievances Index&                  &    0.214\sym{***}&    0.169\sym{***}&                  &    0.152\sym{***}&    0.115\sym{***}&                  &    0.471\sym{***}&    0.448\sym{***}&                  &   -0.058\sym{***}&   -0.058\sym{***}\\
                &                  &  (0.019)         &  (0.019)         &                  &  (0.020)         &  (0.020)         &                  &  (0.019)         &  (0.019)         &                  &  (0.015)         &  (0.015)         \\
\midrule
Observations    &     5760         &     5760         &     5760         &     5814         &     5814         &     5814         &     5813         &     5813         &     5813         &     3857         &     3835         &     3835         \\
Adjusted \(R^{2}\)&    0.039         &    0.023         &    0.052         &    0.026         &    0.011         &    0.032         &    0.022         &    0.112         &    0.120         &    0.000         &    0.004         &    0.004         \\
\end{tabular}
